Data sources
Article 5
1. Member States shall designate a public or private organisation to participate in collecting the data required in accordance with this Regulation. 2. The necessary data may be obtained using any combination of the following sources: (a) compulsory surveys; (b) administrative data, including data collected by regulatory authorities, in particular the rail freight waybill if one is available; (c) statistical estimation procedures; (d) data supplied by professional organisations in the rail industry; (e) ad hoc studies. 3. The national authorities shall take measures for the coordination of the data sources used and to ensure the quality of the statistics transmitted to Eurostat.